These great hollow globes of artificial super-metals, and artificial transparent adamant, ranged in size from the earliest and smallest structures, which were no bigger than a very small asteroid, to spheres considerably larger than the Earth. (Olaf Stapledon, STAR MAKER)
Sunday, May 8, 2016
Cloudy Dash
Today's Astronomy Picture of the Day shows transiting Mercury racing across the face of the Sun, as the Sun itself is obscured by clouds. If that's not an early Pink Floyd album song title, I don't know what is!
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